Prescription savings
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Medication discounts

Get Diltiazem ER (Cardizem CD) for as low as $13.87, which is 54% off the average retail price of $30.06 for the most common version, by using a GoodRx coupon.
You can save more on select medications with GoodRx Companion. See which medications are eligible.


| Dosage | Quantity | Retail price | GoodRx price |
|---|---|---|---|
| 120mg | 30 capsules | N/A | $16.06 |
| 180mg | 90 capsules | N/A | $33.85 |
| 240mg | 90 capsules | $100.19 | $34.72 |
| 300mg | 90 capsules | $134.08 | $44.05 |
| 360mg | 90 capsules | $267.58 | $44.34 |
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Popular offers
250+ medications are free, with hundreds more under $10. Plans start at $9.99/mo. (when paid yearly). Terms apply.
GoodRx coupon prices last updated on 09/20/26.